*{
  margin: 0;
  padding: 0;
  list-style: none;
}

.web{
  width: 100%;
  .box{
    width: 50%;
    padding-top: 28.11%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    overflow: hidden;
    ul{
      width: 100%;
      height: 100%;
      white-space: nowrap;
      font-size: 0;
      position: absolute;
      left: 0;
      top: 0;
      transition: all 0.5s;

      li{
        display: inline-block;
        height: 100%;
        a{
          height: 100%;
          display: inline-block;
          position: relative;
          img{
            height: 100%;
            width: 100%;
          }
        }
      }
    }
    .arrow{
      width: 20%;
      height: 100%;
      position: absolute;
      top: 0;
      font-size: 4vw;
      display: flex;
      justify-content: center;
      align-items: center;
      transition: all 0.3s;
    }
    .leftArrow{
      left: 0;
      background:linear-gradient(90deg,gray,transparent);
      transform: translateX(-100%);
    }
    .rightArrow{
      right: 0;
      background:linear-gradient(90deg,transparent,gray);
      transform: translateX(100%);
    }
    &:hover .arrow{
      transform: translateX(0%);
    }
    .pointList{
      white-space: nowrap;
      position: absolute;
      bottom: 10%;
      left: 50%;
      transform: translate(-50%);
      li{
        width: 1vw;
        height: 1vw;
        display:inline-block;
        background-color: rosybrown;
        margin: 0 0.5vw;
        border-radius: 50%;
        cursor: pointer;
      }
      .active{
        background-color: red;
      }
    }
  }
}